// WaveAccess.h: interface for the CWaveAccess class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_WAVEACCESS_H__772E8E72_52B7_4308_B319_AB359C7237F5__INCLUDED_)
#define AFX_WAVEACCESS_H__772E8E72_52B7_4308_B319_AB359C7237F5__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "AudioAccess.h"

/*Byte order: Little-endian
 Offset   Length   Contents
   0      4 bytes  "RIFF"
   4      4 bytes  <File length - 8>
   8      4 bytes  "WAVE"

  12      4 bytes  "fmt "
  16      4 bytes  <Length of the fmt data> // (=16)
  20      2 bytes  <WAVE File Encoding Tag>
  22      2 bytes  <Channels>     // Channels: 1 = mono, 2 = stereo
  24      4 bytes  <Sample rate>  // Samples per second: e.g., 44100
  28      4 bytes  <bytes/second> // sample rate * block align
  32      2 bytes  <block align>  // channels * bits/sample / 8
  34      2 bytes  <bits/sample>  // 8 or 16

  36      4 bytes  "data"
  40      4 bytes  <Sample data size(n)>
  44     (n)bytes  <Sample data>*/
 /* Windows WAVE File Encoding Tags */
#define WAVE_FORMAT_UNKNOWN 0x0000 /* Unknown Format */
//#define WAVE_FORMAT_PCM 0x0001	/* PCM */// mmsystem.h define this 
#define WAVE_FORMAT_ADPCM 0x0002	/* Microsoft ADPCM Format */
#define WAVE_FORMAT_IEEE_FLOAT 0x0003 /* IEEE Float */
#define WAVE_FORMAT_VSELP 0x0004 /* Compaq Computer's VSELP */
#define WAVE_FORMAT_IBM_CSVD 0x0005 /* IBM CVSD */
#define WAVE_FORMAT_ALAW 0x0006 /* ALAW */
#define WAVE_FORMAT_MULAW 0x0007 /* MULAW */
#define WAVE_FORMAT_OKI_ADPCM 0x0010 /* OKI ADPCM */
#define WAVE_FORMAT_DVI_ADPCM 0x0011 /* Intel's DVI ADPCM */
#define WAVE_FORMAT_MEDIASPACE_ADPCM 0x0012 /*Videologic's MediaSpace ADPCM*/
#define WAVE_FORMAT_SIERRA_ADPCM 0x0013 /* Sierra ADPCM */
#define WAVE_FORMAT_G723_ADPCM 0x0014 /* G.723 ADPCM */
#define WAVE_FORMAT_DIGISTD 0x0015 /* DSP Solution's DIGISTD */
#define WAVE_FORMAT_DIGIFIX 0x0016 /* DSP Solution's DIGIFIX */
#define WAVE_FORMAT_DIALOGIC_OKI_ADPCM 0x0017 /* Dialogic OKI ADPCM */
#define WAVE_FORMAT_MEDIAVISION_ADPCM 0x0018 /* MediaVision ADPCM */
#define WAVE_FORMAT_CU_CODEC 0x0019 /* HP CU */
#define WAVE_FORMAT_YAMAHA_ADPCM 0x0020 /* Yamaha ADPCM */
#define WAVE_FORMAT_SONARC 0x0021 /* Speech Compression's Sonarc */
#define WAVE_FORMAT_TRUESPEECH 0x0022 /* DSP Group's True Speech */
#define WAVE_FORMAT_ECHOSC1 0x0023 /* Echo Speech's EchoSC1 */
#define WAVE_FORMAT_AUDIOFILE_AF36 0x0024 /* Audiofile AF36 */
#define WAVE_FORMAT_APTX 0x0025 /* APTX */
#define WAVE_FORMAT_AUDIOFILE_AF10 0x0026 /* AudioFile AF10 */
#define WAVE_FORMAT_PROSODY_1612 0x0027 /* Prosody 1612 */
#define WAVE_FORMAT_LRC 0x0028 /* LRC */
#define WAVE_FORMAT_AC2 0x0030 /* Dolby AC2 */
#define WAVE_FORMAT_GSM610 0x0031 /* GSM610 */
#define WAVE_FORMAT_MSNAUDIO 0x0032 /* MSNAudio */
#define WAVE_FORMAT_ANTEX_ADPCME 0x0033 /* Antex ADPCME */
#define WAVE_FORMAT_CONTROL_RES_VQLPC 0x0034 /* Control Res VQLPC */
#define WAVE_FORMAT_DIGIREAL 0x0035 /* Digireal */
#define WAVE_FORMAT_DIGIADPCM 0x0036 /* DigiADPCM */
#define WAVE_FORMAT_CONTROL_RES_CR10 0x0037 /* Control Res CR10 */
#define WAVE_FORMAT_VBXADPCM 0x0038 /* NMS VBXADPCM */
#define WAVE_FORMAT_ROLAND_RDAC 0x0039 /* Roland RDAC */
#define WAVE_FORMAT_ECHOSC3 0x003A /* EchoSC3 */
#define WAVE_FORMAT_ROCKWELL_ADPCM 0x003B /* Rockwell ADPCM */
#define WAVE_FORMAT_ROCKWELL_DIGITALK 0x003C /* Rockwell Digit LK */
#define WAVE_FORMAT_XEBEC 0x003D /* Xebec */
#define WAVE_FORMAT_G721_ADPCM 0x0040 /* Antex Electronics G.721 */
#define WAVE_FORMAT_G728_CELP 0x0041 /* G.728 CELP */
#define WAVE_FORMAT_MSG723 0x0042 /* MSG723 */
#define WAVE_FORMAT_MPEG 0x0050 /* MPEG Layer 1,2 */
#define WAVE_FORMAT_RT24 0x0051 /* RT24 */
#define WAVE_FORMAT_PAC 0x0051 /* PAC */
#define WAVE_FORMAT_MPEGLAYER3 0x0055 /* MPEG Layer 3 */
#define WAVE_FORMAT_CIRRUS 0x0059 /* Cirrus */
#define WAVE_FORMAT_ESPCM 0x0061 /* ESPCM */
#define WAVE_FORMAT_VOXWARE 0x0062 /* Voxware (obsolete) */
#define WAVE_FORMAT_CANOPUS_ATRAC 0x0063 /* Canopus Atrac */
#define WAVE_FORMAT_G726_ADPCM 0x0064 /* G.726 ADPCM */
#define WAVE_FORMAT_G722_ADPCM 0x0065 /* G.722 ADPCM */
#define WAVE_FORMAT_DSAT 0x0066 /* DSAT */
#define WAVE_FORMAT_DSAT_DISPLAY 0x0067 /* DSAT Display */
#define WAVE_FORMAT_VOXWARE_BYTE_ALIGNED 0x0069 /* Voxware Byte Aligned (obsolete) */
#define WAVE_FORMAT_VOXWARE_AC8 0x0070 /* Voxware AC8 (obsolete) */
#define WAVE_FORMAT_VOXWARE_AC10 0x0071 /* Voxware AC10 (obsolete) */
#define WAVE_FORMAT_VOXWARE_AC16 0x0072 /* Voxware AC16 (obsolete) */
#define WAVE_FORMAT_VOXWARE_AC20 0x0073 /* Voxware AC20 (obsolete) */
#define WAVE_FORMAT_VOXWARE_RT24 0x0074 /* Voxware MetaVoice (obsolete) */
#define WAVE_FORMAT_VOXWARE_RT29 0x0075 /* Voxware MetaSound (obsolete) */
#define WAVE_FORMAT_VOXWARE_RT29HW 0x0076 /* Voxware RT29HW (obsolete) */
#define WAVE_FORMAT_VOXWARE_VR12 0x0077 /* Voxware VR12 (obsolete) */
#define WAVE_FORMAT_VOXWARE_VR18 0x0078 /* Voxware VR18 (obsolete) */
#define WAVE_FORMAT_VOXWARE_TQ40 0x0079 /* Voxware TQ40 (obsolete) */
#define WAVE_FORMAT_SOFTSOUND 0x0080 /* Softsound */
#define WAVE_FORMAT_VOXWARE_TQ60 0x0081 /* Voxware TQ60 (obsolete) */
#define WAVE_FORMAT_MSRT24 0x0082 /* MSRT24 */
#define WAVE_FORMAT_G729A 0x0083 /* G.729A */
#define WAVE_FORMAT_MVI_MV12 0x0084 /* MVI MV12 */
#define WAVE_FORMAT_DF_G726 0x0085 /* DF G.726 */
#define WAVE_FORMAT_DF_GSM610 0x0086 /* DF GSM610 */
#define WAVE_FORMAT_ISIAUDIO 0x0088 /* ISIAudio */
#define WAVE_FORMAT_ONLIVE 0x0089 /* Onlive */
#define WAVE_FORMAT_SBC24 0x0091 /* SBC24 */
#define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092 /* Dolby AC3 SPDIF */
#define WAVE_FORMAT_ZYXEL_ADPCM 0x0097 /* ZyXEL ADPCM */
#define WAVE_FORMAT_PHILIPS_LPCBB 0x0098 /* Philips LPCBB */
#define WAVE_FORMAT_PACKED 0x0099 /* Packed */
#define WAVE_FORMAT_RHETOREX_ADPCM 0x0100 /* Rhetorex ADPCM */
#define WAVE_FORMAT_IRAT 0x0101 /* BeCubed Software's IRAT */
#define WAVE_FORMAT_VIVO_G723 0x0111 /* Vivo G.723 */
#define WAVE_FORMAT_VIVO_SIREN 0x0112 /* Vivo Siren */
#define WAVE_FORMAT_DIGITAL_G723 0x0123 /* Digital G.723 */
#define WAVE_FORMAT_CREATIVE_ADPCM 0x0200 /* Creative ADPCM */
#define WAVE_FORMAT_CREATIVE_FASTSPEECH8 0x0202 /* Creative FastSpeech8 */
#define WAVE_FORMAT_CREATIVE_FASTSPEECH10 0x0203 /* Creative FastSpeech10 */
#define WAVE_FORMAT_QUARTERDECK 0x0220 /* Quarterdeck */
#define WAVE_FORMAT_FM_TOWNS_SND 0x0300 /* FM Towns Snd */
#define WAVE_FORMAT_BTV_DIGITAL 0x0400 /* BTV Digital */
#define WAVE_FORMAT_VME_VMPCM 0x0680 /* VME VMPCM */
#define WAVE_FORMAT_OLIGSM 0x1000 /* OLIGSM */
#define WAVE_FORMAT_OLIADPCM 0x1001 /* OLIADPCM */
#define WAVE_FORMAT_OLICELP 0x1002 /* OLICELP */
#define WAVE_FORMAT_OLISBC 0x1003 /* OLISBC */
#define WAVE_FORMAT_OLIOPR 0x1004 /* OLIOPR */
#define WAVE_FORMAT_LH_CODEC 0x1100 /* LH Codec */
#define WAVE_FORMAT_NORRIS 0x1400 /* Norris */
//#define WAVE_FORMAT_ISIAUDIO 0x1401 /* ISIAudio */
#define WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS 0x1500 /* Soundspace Music Compression */
#define WAVE_FORMAT_DVM 0x2000 /* DVM */
#define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* SubFormat */
#define WAVE_FORMAT_DEVELOPMENT         0xFFFF /* Development */

 /*?#define WAVE_FORMAT_IBM_MULAW 0x0101 IBM MULAW? */
 /*?#define WAVE_FORMAT_IBM_ALAW 0x0102 IBM ALAW? */
 /*?#define WAVE_FORMAT_IBM_ADPCM 0x0103 IBM ADPCM? */
 /*?#define WAVE_FORMAT_DIVX_AUDIO160 0x00000160 DivX Audio? */
 /*?#define WAVE_FORMAT_DIVX_AUDIO161 0x00000161 DivX Audio? */ 

typedef struct _WAVFILEHEADER{
    CHAR header[4];
    DWORD dwSize;
    CHAR wave[4];
    CHAR Fmt[4];
    DWORD dwFmtSize;
    // WAVEFORMATEX
    WORD        wFormatTag;         /* format type */
    WORD        nChannels;          /* number of channels (i.e. mono, stereo...) */
    DWORD       nSamplesPerSec;     /* sample rate */
    DWORD       nAvgBytesPerSec;    /* for buffer estimation */
    WORD        nBlockAlign;        /* block size of data */
    WORD        wBitsPerSample;     /* number of bits per sample of mono data */
}WAVFILEHEADER;

class CWaveAccess : public CAudioAccess
{
public:
	CWaveAccess();
	virtual ~CWaveAccess();

    virtual int GetFileSize();
    virtual short GetChannelNum();
    virtual long LoadFile(CString stFileName);
    virtual char* GetHeader();
    virtual short GetWaveType();
    virtual int GetSmpFreq();
    virtual int GetBitPerSnd();
    virtual short GetBitsPerSmp();
	virtual int GetBlockAlign();
	virtual float GetDuration();
    virtual BOOL Extract(int iChnIndx);

protected:
    char m_cHeader[5];
    int m_iSize;
    char m_cWaveId[5];
    char m_cFmtID[5];
    char m_cfileByte[5];
    short m_wFormat;
    short m_sChannel;
    int m_iSmpFreq;
    int m_iBitPerSnd;
    short m_sBlockAlign;
    short m_sBitsPerSmp;
    BOOL m_bHasFact;
    int m_iFactSize;
	float m_fDuration;
};



#endif // !defined(AFX_WAVEACCESS_H__772E8E72_52B7_4308_B319_AB359C7237F5__INCLUDED_)
